Resource exhaustion in Kubeedge
CVE-2022-31080
KubeEdge is an open source system for extending native containerized application orchestration capabilities to hosts at Edge. Prior to versions 1.11.1, 1.10.2, and 1.9.4, a large response received by the viaduct WSClient can cause a DoS from memory exhaustion. The entire body of the response is being read into memory which could allow an attacker to send a request that returns a response with a large body. The consequence of the exhaustion is that the process which invokes a WSClient will be in a denial of service. The software is affected If users who are authenticated to the edge side connect to `cloudhub` from the edge side through WebSocket protocol. This bug has been fixed in Kubeedge 1.11.1, 1.10.2, and 1.9.4. There are currently no known workarounds.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.007 (49.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Kubeedge — versions = 1.11.0, >= 1.10.0, < 1.10.2, < 1.9.4
- Linuxfoundation Kubeedge
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-31080?
- CVE-2022-31080 is a medium-severity vulnerability in Kubeedge, classified under Uncontrolled Resource Consumption. CVSS score: 4.4/10. Published 2022-07-11.
- How severe is CVE-2022-31080?
- Medium severity. CVSS v3 base score is 4.4 out of 10.